Q: I want to know about black magic. Is it permissible to practise it for a good purpose?

Q: I am working as a civil engineer. We deal with construction of buildings and other structures. Sometimes we have to work for the army of disbelievers (kuffar) who are presently fighting against Muslims. We have to construct buildings and other structures for them... Is it allowed for us to work for them although we have no intention to help them on their anti Islamic sentiment. Remember our land is under oppression.

Q: My parents had a joint bank account. Recently my father died. Now will the whole amount or half the amount in this account belong to my mother? Or will it be distributed to all the heirs?

Q: I learned in madrasah that during menstruation, one is not permitted to remove hair from any part of the body or clip the nails.

My question is, would it be permissible to do so if the hair growth causes a rash and discomfort, and the nails chip and break if they are too long?

Q: Can a person exchange the same item like example dairy milk chocolate nuts with dairy milk chocolate raisons (the flavours are different) or is this classified as interest?

Q: Can a person sleep between asr and maghrib? If no, then why? 

Q: Is istibraah only for males?

Q: Is it permissible to smoke hooqah? 

Q: Can I perform salatul tasbeeh namaz in 2-2 rakaats?

Q: Can a married woman stay the night at her (married) sister's house, without her husband's permission?